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kramer
2 years ago
13

Write a quadratic equation in standard form given the roots: -3 and 4/5

Mathematics
1 answer:
Westkost [7]2 years ago
8 0

Answer:x^{2}+\frac{11x}{5}-\frac{12}{5}

Step-by-step explanation:

The roots are really just what x is when the equation is equal to zero. So, an equation with these roots would look like this:

(x+3)(x-4/5)=y

however, this is not standard form. To get standard form we will need to expand the equation using FOIL.

x^2+3x-4x/5-12/5=

x^2+11x/5-12/5

and that would be your answer.

This stuff is a bit tricky and it get annoying with those pesky fractions. If you have any questions just comment.

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Ou are setting up a zip line in your yard. You map out your yard in a coordinate plane. An equation of the line representing the
Brums [2.3K]

9514 1404 393

Answer:

  5.6 feet

Step-by-step explanation:

Assuming your zip line equation is supposed to be ...

  y = -8/3x +8

we can rewrite it to general form:

  8/3x +y -8 = 0

  8x +3y -24 = 0 . . . . multiply by 3

Now, we can use the formula for the distance from a point to a line:

  d = |ax +by +c|/√(a²+b²) . . . . . distance from (x, y) to ax+by+c=0

Filling in the values we know, we have ...

  d = |8(3) +3(16) -24|/√(8² +3²) = 48/√73 ≈ 5.6

The distance from the tree to the zip line is about 5.6 feet.

8 0
3 years ago
Need help, can't figure this one out:
Anarel [89]

The perimeter of the following rectilinear figure is 54 units.

<h3>What is Perimeter ?</h3>

Perimeter of a figure is the distance covered when a person walk one round across its edges .

The given figure is in the form of a rectangle ,

The perimeter is equal to the sum of all sides ,

The bottom base is 13 includes (base of the small extended figure )

The left side is 14(includes left side of the small extended figure)

The right side is 10+5+4 (includes right side of the small extended figure)

The top is 8

Therefore the perimeter is 13+14+10+5+4+8 = 54 units

To know more about Perimeter

brainly.com/question/6465134

#SPJ1

6 0
2 years ago
I need step to step help please.
VMariaS [17]

The equation and steps are...

First, find the slope of the original equation.  In this case, the slope is -8.  You know that perpendicular lines have slopes that are negative reciprocals, so the negative reciprocal of -8 is 1/8.


Now, use this new slope and the given point to find the y-intercept:

 y = mx + b

4 = (?)(2) + b

4 = ? + b

15/4 = b

 

Use the new slope and y-intercept to write the new linear equation:

 Answer:

y = 1/8x + 15/4


Sorry if i'm wrong

seemed easy

8 0
4 years ago
Bo is buying a board game that usually costs BB dollars. The game is on sale, and the price has been reduced by 18\%18%.
valentinak56 [21]

Answer:

You didn't provide any choices but.....

Step-by-step explanation:

with N representing the cost of the game

N - .18(N)

6 0
4 years ago
A carpenter is framing an opening in a wall to hang a rectangular door. Which properties must the door frame have to ensure that
tigry1 [53]
A) The top and bottom are parallel.B)The top and right side form a right angle.D)The left side and right side are parallel.E)The left side and bottom form a right angle.
Are correct just took the assignment and got it right.
5 0
4 years ago
Read 2 more answers
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